The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
Jan. 08, 2009
Yoshikuni Sato, Nagoya, JP;
Daisuke Nakano, Kiyosu, JP;
Yuichi Yamada, Aichi, JP;
Toru Nakamura, Aichi, JP;
Yoshikuni Sato, Nagoya, JP;
Daisuke Nakano, Kiyosu, JP;
Yuichi Yamada, Aichi, JP;
Toru Nakamura, Aichi, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A control system for controlling the ignition of a plasma-jet spark plug provided in an internal combustion engine senses an operating condition of the internal combustion engine, and determines an ignition mode of the plasma-jet spark plug in accordance with the sensed operating condition. The control system performs an ignition control of breaking down the insulation across a spark discharge gap by applying a first electric power to the plasma-jet spark plug, and producing plasma in the vicinity of the spark discharge gap by applying a second electric power to the spark discharge gap in a state of dielectric breakdown. The control system performs this ignition control according to the ignition mode determined as mentioned above.